Mom’s Peanut Butter Rice Krispie Squares

Servings: 24 serving(s)

Prep time: 15 minutes

Total time: 15 minutes

Peanut butter rice krispie squares are quick and easy. Made with pantry staples and ready in a flash they’re much simpler than the marshmallow version, and more substantial.

Peanut butter rice krispie squares are quick and easy. Made with pantry staples and ready in a flash

When I was growing up, Rice Krispie squares were always made with peanut butter. I’m sure I had the regular marshmallow variety too but this recipe for peanut butter rice krispie squares was in regular rotation.

It’s a simple recipe: sugar, syrup, peanut butter and crispy rice cereal. Mom usually frosted them with a thin layer melted chocolate chips to dress them up.

Peanut butter rice krispie squares are quick and easy. Made with pantry staples and ready in a flash

Above is mom’s original recipe. This week she substituted molasses for the corn syrup – an easy substitution that adds so much flavour. Peanut butter and molasses are an epic flavour combination. In fact, we have an entire section on this site devoted to recipes that make the most of peanut butter and molasses.

Easy to avoid corn syrup

If you’re trying to avoid corn syrup, molasses is an easy substitution. In this recipe you can substitute molasses for the full amount of corn syrup or you can use half molasses, half maple syrup** or honey. Using half molasses, half corn syrup is another option.

Peanut butter rice krispie squares are quick and easy. Made with pantry staples and ready in a flash

These squares travel well

This recipe makes sturdy squares that are very chewy. They are very rich as well  so I suggest you cut them into small squares.

These are gluten-free when made with GF crisp rice cereal. Many brands are made with barley malt syrup, which is not gluten free. Be sure to read the ingredient list.

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Mom’s Peanut Butter Rice Krispie Squares

Peanut butter rice krispie squares are quick and easy. Made with pantry staples and ready in a flash

  • Author: Bridget Oland
  • Prep Time: 5 minutes
  • Cook Time: 5 minutes
  • Total Time: 10 minutes
  • Yield: 30 squares 1x

Ingredients

Scale
  • 1 cup sugar
  • 1 cup Crosby’s Fancy Molasses
  • 1 cup peanut butter
  • 6 cups crisp rice cereal*
  • 1/2 cup chocolate chips (optional)

Instructions

  1. Grease a 9″ x 9″ pan or line it with parchment paper.
  2. In a large pot bring sugar and molasses to the boil, stirring frequently.
  3. Remove from heat and stir in peanut butter.
  4. Mix well.
  5. Add rice cereal and stir to combine.
  6. Pack into prepared pan.
  7. Melt chocolate chips and spread on top (if using).
  8. Cool before cutting.

Notes

*To make these gluten free be sure to use GF crisp rice cereal.

Variation: Substitute honey or maple syrup** for 1/2 cup of the molasses.

**Squares made with maple syrup will be drier, less chewy and a little brittle. 

Keywords: peanut butter squares; molasses squares; rice krispie squares

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11 thoughts on “Mom’s Peanut Butter Rice Krispie Squares

  1. Sue says:

    Could you substitute honey or maple syrup for the sugar in these Rice Krispie squares?

    1. Ellen says:

      It says in the notes under the recipe :)
      NOTES
      Variation: Substitute honey or maple syrup for 1/2 cup of the molasses.

  2. Georgi Hanson says:

    I must try these squares with molasses, I make them with marshmallows other times….will let you know… Thanks…

  3. Barbara says:

    Sounds good, but why add 1 cup of sugar? 1 cup of molasses, or combination is sweet enough, yes?

    1. Bridget Oland says:

      They are definitely sweet! A bit like candy. I haven’t tried them with 1 cup molasses only so am not sure what the consistency might be like.

  4. Lila says:

    I am going to make these for sure.Look at the beautiful hand writting

  5. WayneMona1 . says:

    Wonderful. Only thing I don’t like is I have trouble eating them all and not sharing.
    I sprinkled lots of over top of them.
    Thanks, very good

  6. Wayne Lind says:

    Sorry, my last comment should have said I sprinkled coconut flakes over the top. Now I think I will now have one to go with my morning coffee.

  7. Cynthia Shand says:

    Hi Bridget!
    My 4 year old grandson is Celiac and just wondering if these squares would count as Gluten free?

    1. Bridget Oland says:

      As long as you buy gluten-free crisp rice cereal. Many brands have barley malt syrup in them so you have to read the ingredient list. Other than that they’re gluten free.

  8. Barb says:

    I’m going to try these but with up to 1/2 cup of Agave syrup instead of the sugar. I say ‘up to’ a half cup because it will be a taste test as I go so they aren’t overly sweet but balanced with the molasses. 😊

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